In-Game Description

A spell demands devotion from its caster,
but using this spice makes a chosen spell
attainable with 1 less intelligence. Will only
work with assistance from a certain person.

The spice does not raise one's intelligence,
but only obfuscates the requirement.

Use

Lowers the required Intelligence level to cast a specific Sorcery or Hex by one. This is done through Magerold of Lanafir in Iron Keep through his Incense menu option.
Spells cannot be spiced to require lower than 10 Intelligence.